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    • Chevrolet Performance LSX Bare Engine Block, Iron 4.185 in Finished Bore, 9.240 in Deck, 6-Bolt Head | 19417353
    • GMP19417353.jpg

    Chevrolet Performance LSX Bare Engine Block, Iron 4.185 in Finished Bore, 9.240 in Deck, 6-Bolt Head | 19417353

    Part Number: 19417353
    Regular Price $5,872.33

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    The Chevrolet Performance LSX bare block is a finished-bore cast iron LS cylinder block engineered for large-displacement, high-horsepower and forced-induction LS builds. The 4.185 in bore arrives finished and ready for assembly, and the block adds extra head-bolt provisions for improved clamping under boost.

    Specifications:

    • LSX bare cylinder block
    • Material: cast iron
    • Bore: 4.185 in, finished
    • Deck height: 9.240 in
    • Main caps: standard location, 6-bolt
    • Head bolt provision: 6-bolt per cylinder
    • Rear seal: 1-piece
    • Finish: orange
    • Fits GM LS-Series architecture
    • Part number: 19417353

    Applications:

    • GM LS-Series engine platform (LSX race block)

    FAQ

    Is the 4.185 in bore finished?

    Yes, it is machined to a finished size and ready for ring fitment and assembly.

    What is the head bolt arrangement?

    The block provides six head bolts per cylinder for increased clamping load under high cylinder pressure.

    What rear main seal does it use?

    It uses a 1-piece rear main seal.

    What engine family does this block fit?

    It fits the GM LS-Series architecture as part of the LSX race block line.

    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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